Problem with flashlight bought from Banggood

Okay… just had a problem with a flashlight that bought from Banggood. The battery drained itself in OFF position, so I can’t just put a battery in the flashlight. ( Try it 4 times )

Send an email about the problem to their Customer Service, and after 2 weeks without good news because they just want to spin out time.

PM Banggood in BLF ( No Response in 2 weeks )

Send email on Jan 29
Their first response is :
1st response ( on Feb 3 ) : Could you take a video and photo the label package ??
2nd response ( on Feb 7 ) : It will be forwarded to our expert
3rd response ( on Feb 11 ) : Their expert just suggest, put a battery when I’m gonna use it. ( This person is VERY VERY EXPERT )
PS : The rolling back cover is also make some squeaky noise and they suggest put some oil ( I know, but it’s NEW flashlight )

Another problem,

Actually I bought it with a flashlight, but who knows the item will be split shipping.
It’s just a Silicone Rubber, and after 2 weeks they told me to check in local customs, it maybe detain in there.

Seriously

Bad Customer Service, Bad Response, Bad Solution.

=

Sounds like it has a bad parasitic drain when off. ( alot of the cheaper electronic Side-switch lights have a parasitic drain when off, and will batteries dead after a fiew weeks or months.
Many of these style of lights have some kind of “lock-out” feature, some well known brands/models have a lock-out by holding down the switch for a specified period of time to lock it out, and some can be locked out by loosening the tail cap or head a half a turn. ( if the threads are anodized).

How fast did it drain and what's the manufacturer/model of the battery?

Im sorry to hear of your misfortune with those imbecilic morons. :Sp They repeatedly have the absolute worst CS of any Chinese reseller I have ever dealt with. Putting it nicely, they are collectively as stupid as sh!t. Hurry up and file your paypal dispute before you exceed the 45 day deadline after ordering. Banggood means, “I just stole your money” in Chinese. |(

The light sounds like it has a very high parasitic drain in standby. Some e-switched lights are like that and require you to lock out the tail cap (if capable) or remove the cell until you use the light.

Great question… some of those cheap Chinese cells (re-wrapped dead laptop pulls) wont last the night while resting on their own.

I'm not saying XML83 has the same issue but you'd be surprised how many people email/call about their flashlight not working and it turns out they're using crap cells and refuse to believe it.

Its been a reoccurring theme that pops up all the time, especially since the advent of the XM-L. Power emitters require good cells to perform well.

I don’t envy you having to deal with that, in my experience many people will refuse to believe anyone but themselves when you tell them something they need to know

I’m try it 4 times.

1st : Ultrafire Battery. I thought it’s accidentally turn ON in my drawer. So I recharged it.
2nd : Still same Ultrafire Battery. And move the flashlight in Transparent Box so I can see if the light is ON.
3rd : Non Rechargeable Alkaline AAA battery.
4th : Sanyo Eneloop AAA Battery

The battery is empty after 2 days (ultrafire) - 3 or 4 days with eneloop.

Luckily I’m not using it with my Panasonic Unprotected.

Thanks.

NB : Even the Ultrafire battery is not like Panasonic, but it work well in other flashlight.

Sounds pretty bad, a definitive way of finding out is using your DMM to measure current draw on the parasitic drain.

Some people already suggest that too, but how to do it ?

I just have an analog multimeter :smiley:

That’s no problem which anyone can solve the light is just performing normally.
These electronic switch driver have a standby current which discharges the light continuously.
These light has probably a bit higher standby current and you use garbage batteries so in this combination it will act like you have described it.

To measure current just unscrew the tailcap, adjust multimeter to current measuring, use multimeter instead of tailcap(one lead to the housing the other lead to the battery-) now all current has to flow through your multimeter.

Doesn’t matter analog or digital, as long as your meter has current reading (ammeter).

I’m taking a shot here using the eneloop as example as it probably has the most trustworthy capacity. Normal AAA Eneloop should have around 800mAh. As you mentioned it will drain out in 3 days - that’s 72 hours. So your drain current is around 800/72 ~= 11 mA.

If your meter can measure that current range, then you can simply connect the MM on the light with the tailcap off, just like regular tailcap reading. Except this time you don’t turn the light on. Then you can confirm the parasitic drain.